Composition for tempering tool-points.



UNITED STATES PA ENT OFFICE; I

JOSEPH F QPFLIEGER, OF conning, 01110.

COMPOSITION Foe TEMPERING 'TOOh-POINTSQ SPECIFICATION g P Qt Letters Batent No. 683,490, dated October 1, 1901.

Application l d filaments: no, 1800. Serial No; 30,625. (No specimens.) 7

' To all W it y cancer-n: sel containing the liquidsolution as to cause Be it known that I, JQSAEPH I PFLIEGER, a the points only of said tools to extend into i i n f the Un ed States, residing at Oornthe solution. The tools are thus left until the ing, in the county of Berry and State of Ohio, points are sufficiently cooled and hardened.

5 have invented a new. and useful Composition It' has been demonstrated that the particuz 5 15011.- Hardening TooLPoints, of which the fol- Iar composition or solution herein set forth 1Q .119; is a. ossification. i is exceedingly effective in imparting the de- In Qarrying; out my invention I Iirstprovidc sired te'mper'to the tool-points. at composition of matter which consists of the What I claim,'and desire to secure by Let- Y m following ngredients combined substantially tors Patent of the United States, is- 30 in I the p portions stated, viz: carbonate of The herein-described composition for tememnonia, x o ncestcarbonate of potassium, pering tool-points consisting of carbonate of six 911 6 nitrate of potash, six ounces; ammonia, carbonate" of potassium, nitrate of 30 1 0111 o nces; Soft Water, fifteen gallons. potash, soap and water substantially as do 35 T116586inglfiliclztilaretilfiirolghly mingled by scribed and for the purpose specified;

cg ation, 11111 i iniug e a ove composition l w v 'for hardening the points of tools theitools to JOSEPH PFLIEGEB' b a dened are as fast as the same are com In presence ofi WWWWWWW pleted and While stilLat a red heat succes- JAMES A SWEE NEY,

so, sively so arranged or supported above a WQS- PATRICK -O. FRIEL. 

